Double up the jab and make sure you are stepping with each one. That is what fixed mine back when I was learning to box. Make a video, so we can see what you are doing. Written descriptions only go so far.

6/27/2012 1:58pm,

dogwink

chickenbox, try analyzing both your jab and cross in slow motion.

Do your movements real slow on a target that you can just reach with a properly executed jab WITHOUT STEPPING.

If your cross comes up short, experiment with body positions and find most comfortable one allowing you to reach the target with your cross. It will most likely be rotating your hips then kinetic linking your shoulder in the process. Now work your body movement to that position and gradually speed up.

6/27/2012 2:41pm,

Permalost

Since you're a karate guy: when you throw your rear hand punch, is your heel on the ground, or are you pivoting it on the ball of the foot? Playing around with this may help you get the alignment to turn the hips all the way.

7/03/2012 11:46pm,

Turning the hips hives you a greater reach with the jab and moves your head out of the way.

7/04/2012 12:11am,

Hanniballistic

Quote:

Originally Posted by JKD1128

Turning the hips hives you a greater reach with the jab and moves your head out of the way.

Which in no way answers the question and is pretty much a non-contribution...you need to lurk more and post less son

OP, it has been addressed a few times already but I suspect you are not "travelling" with your cross. After a stiff jab set up then allow yourself to slide forward a little as you drive your hips/weight forward. Most people try and keep the rear foot rooted, which cause the hips not to turn over and prevents you using full distance/extension

Notice how Pac's rear foot moves just a little as he "squares" his hips for the cross in this short video

As a boxer, I guessing your right cross is short because of no shoulder roll. Rolling the shoulder with the punch does 3 things. 1. Contingues the and directing the power of the legs and hips into the punch.2. rolling the shoulder actually adds more reach. 3. with the chin down and shoulder roll your chin is protected from the counter left hook. This is very old school boxing that still works .

7/04/2012 8:25am,

FluidSound

Hm... This might be a dumb response, but do you pivot your feet?

7/04/2012 9:28am,

MarJoe

Like the way you turn your feet hitting s golfball or swinging a baseball bat.

7/04/2012 9:37pm,

Bugeisha

If you can post a quick vid, the response you'll get will be faster and more accurate.

7/04/2012 9:57pm,

Urbanassassin

I'm not sure if this has been suggested yet, but have you considered working on the timing of your strikes as well? The timing of your moves can be more important than the speed of them. If you pop him with the quick jab, he may reel back or block or move out the way, making the cross you were already sending come short from his recoil. Basically, think less of a fighting game style combo where every hit has to come right after the other quickly or else the combo fails, and more of just continuing your assault with a different move from a different body position.